Another species that occurs rather rarely in the Peterborough area. There was one on private waters last winter but this one (found on 16 Nov by Garry Heath) is much more accessible and my first since one at Tallington Lakes so long ago I can barely remember it. Very close views were possible as the bird swam either side of Crowland Bridge on the River Welland.
Great Northern Diver (Gavia immer), juvenile/first-winter
Digiscoped with the Nikon CP995, Leica APO77 and 20x eyepiece.